22339 + Interview Questions in Biology in Class 11

1.	Question : In sugarcan plant, CO_2 is fixed into malic acid, in which the enzyme that fixes carbon dioxide is
Answer» RIBULOSE phosephate KINASE FRUCTOSE phosphatase ribulose bisphosphate carboylase phosphonol PYRUVATE carboxlase Answer :D

Discussion

2.	Question : In submerged hydrophytes, the absorption of water takes place thrugh
Answer» root stem leaf general SURFACE of plant. Solution : Roots are poorly developed in hydrophytes and the water ABSORPTION takes PLACE through general surface of the plant BODY.

Discussion

3.	Question : In succession, complexities in structure
Answer» DRASTICALLY INCREASE slowly increase Does not increase Remain constant Answer :B

Discussion

4.	Question : In stem branches arise endogenously.
Answer» SOLUTION :In STEM BRANCHES ARISE exogenously.

Discussion

5.	Question : In Sponges, gametes are derived from
Answer» ARCHAEOCYTES EPIDERMIS PINACODERM MESOHYL ANSWER :A

Discussion

6.	Question : Consider the following statements In spring season vascular cambium (i) is less active (ii) produces a large number of xylary elements (iii) forms vessels with wide cavities
Answer» (i) is CORRECT but(II) and (III) are NOTCORRECT (i) is notcorrect but(ii) and (iii)are notcorrect (i) and (ii) are correctbut(iii)is not correct (i) and (ii) are not correct but (iii) is correct Solution :(i) and (ii)are not correctbut (iii) is correct

Discussion

7.	Question : In some old trees, though the central part (heart wood) is lost, the plant survives because
Answer» The bark CONDUCTS food and WATER The sapwood conducts water and SECONDARY phloem conducts food The cork conducts water and sapwood conducts food The water is CONDUCTED through sapwood and there is no conduction of food Answer :B

Discussion

8.	Question : In some animal groups , the body is found divided into compartments with serial repetition of at least some organs . This characteristic feature is called
Answer» SEGMENTATION METAMERISM metagenesis metamorphosis ANSWER :B

Discussion

9.	Question : In some animal groups, the body is found divided into compartments with at least some organs. This characteristic feature is named (A) Segmentation (B) Metamerism (C) Metagenesis (D) Metamorphosis
Answer» Segmentation METAMERISM METAGENESIS Metamorphosis ANSWER :B

Discussion

10.	Question : In Smilax, stipules are modified into tendrils and leaves show parallel venation.
Answer» ANSWER :FALSE

Discussion

11.	Question : In small intestine, active absorption occurs in case of
Answer» GLUCOSE AMINO ACIDS `NA^(+)` All the above SOLUTION :N/A

Discussion

12.	Question : In Singer-Nicholson fluid mosaic model of cell membraneextrinsic proteins are :
Answer» TIGHTLY attached to INTRINSIC proteins but can beseparated easily tightly attached to intrinsic proteins and cannot beseparated easily SUPERFICIALLY arranged and can be SEPARATED easily superficially arranged and cannot be separated easily Solution :superficially arranged and can be separated easily

Discussion

13.	Question : In sieve elements, mature sieve plates are blocked by. . . . . .. . .
Answer» SUBERIN Lignin Callose Pectin Answer :C

Discussion

14.	Question : In short day plants, what is the critical period, the length of the day or night?
Answer» Solution :Length of night i.e. the DARK period.It should be LESS than CRITICAL day length.

Discussion

15.	Question :In sheer numbers and distribution, which of the following groups of animal are the most successful :
Answer» ARTHROPODS SNAILS and clams vertebrates SPONGES SOLUTION :arthropods

Discussion

16.	Question : In sharks, one of the following is absent.
Answer» Claspers Placoid scales Cartilaginous ENDOSKELETON AIR BLADDER SOLUTION :Air bladder

Discussion

17.	Question : In Selaginella sperms are multiflagellated .
Answer» ANSWER :FALSE

Discussion

18.	Question : In Selaginella gametophyte is dominant generation .
Answer» ANSWER :FALSE

Discussion

19.	Question :In scotoactive opening, stomata remain open during(a) day(b) night(c) early morning only(d) throughout the day and night
Answer» day night EARLY MORNING only THROUGHOUT the day and night Answer :B

Discussion

20.	Question : In Scoliodon teeth are modified
Answer» FINS placoid SCALES ctenoid scales CYCLOID scales ANSWER :B

Discussion

21.	Question : In S phase of the cell cycle
Answer» Amount of DNA doublesin each CELL Amount of DNA REMAINS same in each cell Chromosone number is increased Amount of DNA is REDUCED to HALF in each cell Answer :A

Discussion

22.	Question : In S phase of the Cell Cycle :
Answer» CHROMOSOME number is increased Amount of DNA is reduced to HALF in each cell Amount of DNA DOUBLES in each cell Amount of DNA REMAINS same in each cell Answer :C

Discussion

23.	Question : In roots conjunctive tissue lies in between
Answer» EPIDERMIS and Endodermis Endodermis and Pericycle Xylem and PHLOEM PROTOXYLEM and Metaxylem Answer :C

Discussion

24.	Question : In Riccia, gametophyte starts from spore and ends in
Answer» ZYGOTE Spore Capsule Prothallus Solution :In Riccia, GAMETOPHYTE STARTS from spore and ENDS in zygote.

Discussion

25.	Question : In Rhizoups species, the sexual reproduction takes place between two gametangia containing coenogmaete by the process of
Answer» oogamy somatogamy gemetangial copulation gametangial contact Answer :C

Discussion

26.	Question : In rhodophyceae there is predominance of pigment r - phycoerythrin / phycocyanin.
Answer» ANSWER :r-phycoerythrin

Discussion

27.	Question : In Rhizopus, sexual fusion takes places between
Answer» TWO coenogametangia two gametes two hyphae two sporangia Answer :A

Discussion

28.	Question : In Rhizopus conjugation produces (a) Zoospore(b) zygospore(c) akinete(d) arthrospore
Answer» ZOOSPORE ZYGOSPORE akinete arthrospore

Discussion

29.	Question : Mention the kingdoms included in Whittaker's classification.
Answer» Solution :Monera is the only PROKARYOTIC KINGDOM in Whittaker's classification, WHEREAS protista, fungi, PLANTAE and ANIMALIA comes under eukaryotes.

Discussion

30.	Question : In red algae reserve food material is ………… starch.
Answer» ANSWER :Floridean

Discussion

31.	Question : In red algae and blue green algae bilioproteins are present .
Answer» Solution :DUE to PRESENCE of phycoeruthrin and PHYCOCYANIN they are CALLED red and blue green algae.

Discussion

32.	Question : In red algae, food is stored as a carbohydrate called_________
Answer» SOLUTION :Floridean STRACH

Discussion

33.	Question : In radial vascular bundles, xylem and phloempatches occur in ........... patches.
Answer» ANSWER :ALTERNATE

Discussion

34.	Question : In radial vascular bundles the xylem and phloem lie
Answer» On different radii On the same radius Both (1) and (2) NONE of these Answer :A

Discussion

35.	Question : In rabbit, cellulose digestion occurs in :
Answer» Ileum Duodenum STOMACH Caecum Answer :D

Discussion

36.	Question : In rabbit proteins are digested by
Answer» PEPSIN and trypsin Trypsin and STEAPSIN Steapsin and pepsin All the above ANSWER :a

Discussion

37.	Question : In r-RNA, "r" stands for
Answer» RIBOPHORINS RIBOZYME RIBOSOMAL SRP Answer :C

Discussion

38.	Question : In quiescent centre cells are active.
Answer» SOLUTION :CELLS are INACTIVE in QUIESCENT CENTRE

Discussion

39.	Question : In pyramid of numbers, from the lower trophic level to higher trophic level there is progressive
Answer» DECREASE in NUMBER and SIZE of organisms INCREASE in number and size of organisms Decrease in number and increase in size of organisms Increase in number and decrease in size of organisms Answer :C

Discussion

40.	Question : In pteridophytes, well-differentiated vascular tissues are found in
Answer» Roots Stems LEAVES All of the above Solution :In pteridophytes well-differentiated vascular tissues are found in ROOT, stem and leaves.

Discussion

41.	Question : In pteridophytes, the spores germinate and grow into a heart shaped thalloid structure called_________which is a__________
Answer» SOLUTION :PROTHALLUS, gametophte

Discussion

42.	Question : In pteridophytes, the sporophyte is produced by the
Answer» Gamete Spore ZYGOTE Gametophyte Solution :In pteridophytes the SPOROPHYTE (2N) in produced by the zygote (2n) by MITOTIC division.

Discussion

43.	Question : State whether the following statements are true or false.In pteridophytes, the gametophyte is dominant, while sporophyte is a dependent generation.A. True B. False
Answer» ANSWER :FALSE

Discussion

44.	Question : In pteridophytes plant rhizoids / roots are present .
Answer» ANSWER :ROOTS

Discussion

45.	Question : In pteridophytes or ferms or Dryopteris meiosis occurs during
Answer» Spore formation Gamete formation Formation of sex organs Both A and B Solution :In PTERIDOPHYTE or FERNS or Dryopteris meiosis OCCURS in spore MOTHER cell during spore formation.

Discussion

46.	Question : In pteridophytes, one cell constitute the meristem.
Answer» SOLUTION :Because single CELL MERISTEM in pteridophytes CONSTITUTE both promeristemand PRIMARY meristem.

Discussion

47.	Question : In pteridophytes/Dryopteris meiosis occurs at the time of
Answer» GAMETE formation Spore formation Formation of prothallus Formation of SEX organs Answer :B

Discussion

48.	Question : In pteridophytes branching is never ……………..
Answer» ANSWER :AXILLARY

Discussion

49.	Question : In PSI the reaction centre chlorophyll a has : absorption peak at 700 nm : : PS-II : ………
Answer» ANSWER :680 NM

Discussion

50.	Question : In protostele there is no pith in the centre.
Answer» ANSWER :TRUE

Discussion

Explore topic-wise InterviewSolutions in Current Affairs.

Question : In sugarcan plant, CO_2 is fixed into malic acid, in which the enzyme that fixes carbon dioxide is

Question : In submerged hydrophytes, the absorption of water takes place thrugh

Question : In succession, complexities in structure

Question : In stem branches arise endogenously.

Question : In Sponges, gametes are derived from

Question : Consider the following statements In spring season vascular cambium (i) is less active (ii) produces a large number of xylary elements (iii) forms vessels with wide cavities

Question : In some old trees, though the central part (heart wood) is lost, the plant survives because

Question : In some animal groups , the body is found divided into compartments with serial repetition of at least some organs . This characteristic feature is called

Question : In some animal groups, the body is found divided into compartments with at least some organs. This characteristic feature is named (A) Segmentation (B) Metamerism (C) Metagenesis (D) Metamorphosis

Question : In Smilax, stipules are modified into tendrils and leaves show parallel venation.

Question : In small intestine, active absorption occurs in case of

Question : In Singer-Nicholson fluid mosaic model of cell membraneextrinsic proteins are :

Question : In sieve elements, mature sieve plates are blocked by. . . . . .. . .

Question : In short day plants, what is the critical period, the length of the day or night?

Question :In sheer numbers and distribution, which of the following groups of animal are the most successful :

Question : In sharks, one of the following is absent.

Question : In Selaginella sperms are multiflagellated .

Question : In Selaginella gametophyte is dominant generation .

Question :In scotoactive opening, stomata remain open during(a) day(b) night(c) early morning only(d) throughout the day and night

Question : In Scoliodon teeth are modified

Question : In S phase of the cell cycle

Question : In S phase of the Cell Cycle :

Question : In roots conjunctive tissue lies in between

Question : In Riccia, gametophyte starts from spore and ends in

Question : In Rhizoups species, the sexual reproduction takes place between two gametangia containing coenogmaete by the process of

Question : In rhodophyceae there is predominance of pigment r - phycoerythrin / phycocyanin.

Question : In Rhizopus, sexual fusion takes places between

Question : In Rhizopus conjugation produces (a) Zoospore(b) zygospore(c) akinete(d) arthrospore

Question : Mention the kingdoms included in Whittaker's classification.

Question : In red algae reserve food material is ………… starch.

Question : In red algae and blue green algae bilioproteins are present .

Question : In red algae, food is stored as a carbohydrate called_________

Question : In radial vascular bundles, xylem and phloempatches occur in ........... patches.

Question : In radial vascular bundles the xylem and phloem lie

Question : In rabbit, cellulose digestion occurs in :

Question : In rabbit proteins are digested by

Question : In r-RNA, "r" stands for

Question : In quiescent centre cells are active.

Question : In pyramid of numbers, from the lower trophic level to higher trophic level there is progressive

Question : In pteridophytes, well-differentiated vascular tissues are found in

Question : In pteridophytes, the spores germinate and grow into a heart shaped thalloid structure called_________which is a__________

Question : In pteridophytes, the sporophyte is produced by the

Question : State whether the following statements are true or false.In pteridophytes, the gametophyte is dominant, while sporophyte is a dependent generation.A. True B. False

Question : In pteridophytes plant rhizoids / roots are present .

Question : In pteridophytes or ferms or Dryopteris meiosis occurs during

Question : In pteridophytes, one cell constitute the meristem.

Question : In pteridophytes/Dryopteris meiosis occurs at the time of

Question : In pteridophytes branching is never ……………..

Question : In PSI the reaction centre chlorophyll a has : absorption peak at 700 nm : : PS-II : ………

Question : In protostele there is no pith in the centre.

Question : In pteridophytes, the spores germinate and grow into a heart shaped thalloid structure called_which is a__